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1990 Other Mitsubishi Models 4DR5 black smoke

Tiny
DYUNN2
  • MEMBER
  • 1990 MITSUBISHI
  • 4 CYL
  • 4WD
  • MANUAL
  • 800,000 MILES
I have a toyota landcruiser with a mitsubishi 4DR5 diesel engine, maybe 1990's. Why do I have a very black smoke in my exhaust, everytime I start it, and when it runs. I have already calibrated the injection pump, changed the fuel filter and engine oil. I still get the black smoke. What do you think are the other causes? And how do I fix it? Tnx
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Tuesday, January 15th, 2008 AT 4:37 PM

1 Reply

Tiny
MHPAUTOS
  • MECHANIC
  • 31,937 POSTS
H I there,

Black smoke is over fueling. Have the injectors checked, was the pump calibration done by a diesel work shop? If not get it checked as the over fueling will cause detonation and you will break a piston.

Mark (mhpautos)
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Tuesday, January 15th, 2008 AT 4:42 PM

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